Dislcoatino Flashcards

(44 cards)

1
Q

types of shoulder dislocation

A

Anterior
Posterior
Inferior
Inferior sublax
Multidirectional instability
Anteriorr sublaxation, posterior sublaxation

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2
Q

MC type shoulder dislocation

A

anterior

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3
Q

Mechanism of anterior shoulder dislocation

A

Abduction, extention and ER

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4
Q

bankart lesion

A

ant, inf labral tear ass with anterior shoulder dislocation

Ass with high recurrence rate espoecially in younger patients

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5
Q

Hill Sachs lesion

A

Lesion in posterolateral humeral head due to anterior inferior impact with glenoid

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6
Q

Ass conditions with shoulder dislocation

A

Rotator cuff tear- espically in older patients >40yo
Axillary nerve injury
Greater tuberosity fracture

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7
Q

Most common injured nerve during shoudler dislocation

A

axillary

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8
Q

Ass with posterior shoulder dislocaiton

A

seizures or electric shock

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9
Q

dx psoterior shoulder dislocaiton

A

AP AND AXILLARY VIEW
AP view- lightbulb sign
Axillary - dislocation

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9
Q

cause of inferiro shulder sublaxation

A

deltoid atony

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10
Q

shoulder dislocaiton management

A

traction with rotation

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11
Q

dislocations and relaocations

A

card sets

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12
Q

most common type of joint dislocation

A

shoulder

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13
Q

necessary investigations for suspected shoulder dislocation

A

2 x ray views to r/o fracture- AP, axillary, lateral scapula

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14
Q

predisposing factors for recurrent shoulder dislocation

A

Rotator cuff tear
Damage to the glenohumeral ligament
Bankart lesion and Hill-Sachs lesion
Loose joint capsule

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15
Q

feature of anterior shoulder dislocation

A

arm held in abduction and slight ER
humaral head palpable below coracoid
Loss of shoulder contour: prominent acromion and flattening of the deltoid muscle

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16
Q

features of posterior shoulder dislocation

A

Arm held in adduction and internal rotation (limited external rotation)
Prominent coracoid process with anterior soft tissue flattening
Humeral head not palpable [6]

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17
Q

features of inferior shoulder dislocaiton

A

Arm held in fixed abduction at ∼ 125° (limited adduction)
Humeral head may be palpable in axilla
Elbow typically held in flexion with a pronated forearm
Axillary nerve injury may be present.

18
Q

Clinical evaluation of shoulder dislocaiton

A

assess for signs of a fracture
neurovascular exam

19
Q

When would you consider MRI for shoulder dislocation

A

Hill-Sachs lesion or Bankart lesion identified on x-ray
Normal x-ray despite history consistent with dislocation event

20
Q

mng of posterior shoulder dislocation

A

typically reduced under general anasthesia

21
Q

mng of inferior shoulder dislocaiton

A

Consider traction-countertraction OR gentle rotation of the humeral head to convert it to an anterior dislocation, followed by an anterior dislocation reduction technique.
Consult orthopedics if the humeral head is entrapped, e.g., by the glenohumeral ligament or joint capsule.

22
Q

anterior shoulder dislocation techniques for relaoaciont

A

scapular manipulation
milch technique
traction-countertraction

23
Q

post shoudler reducation care

A

Repeat neurovascular examination and imaging to evaluate reduction success and identify complications (e.g., Hill-Sachs lesion).
Apply an arm sling or shoulder immobilizer.
Provide analgesia, e.g., acetaminophen, NSAIDs, and/or ice packs.
Ensure short-term follow-up (e.g., in 5–8 days) for orthopedics assessment and subsequent rehabilitation.
Counsel patients on the risk of early recurrence and advise avoidance of contact sports until fully healed.

24
patellar dislocation
patella slips out of the femoral trochlear groove, usually laterally
25
causes of patellar dislocaitons
Non-contact (most common): usually due to a twisting injury when the knee is simultaneously in flexion and under valgus strain Direct contact: usually due to a direct sideward impact on the patella (e.g., during contact sports or a car accident)
26
when is a full x ray series for knee dislocation recommended
Positive Ottawa knee rules criteria Effusion Recurrent patellar instability
27
management of patellar dislocation
The patella often relocates spontaneously, making manual reduction unnecessary.
28
most common cause of posterior dislocation of the elbow
FOOSH
29
Mng of elbow dislocations
Elbow dislocations without an associated fracture are managed conservatively with closed reduction and immobilization Flex the elbow to 90° and pronate (preferred) or supinate the forearm. Apply slow axial traction to the forearm while applying counter traction to the middle or distal humerus. Simultaneously apply direct pressure on the posterior aspect of the olecranon. Monitor for signs of successful reduction. Palpable clunk Normal triangular orientation of the three bony prominences of the elbow Reduced pain Verify the stability of relocation by moving the arm through a range of motion. Obtain repeat x-rays to verify correct positioning. Repeat neurovascular examination. Postreduction Elbow immobilization Use a posterior long arm splint or brace. Place the elbow at 90° flexion with the forearm in slight pronation. Reassess vascular status after the splint is applied. Maintain immobilization for 5–10 days. [1][5] POLICE principle Range of motion exercises (after a period of immobilization) Orthopedic follow-up (within 1 week) [3]
30
complications of elbow dislocation
brachial artery injury joint instability posttraumatic stiffness peripheral nerve injury
31
classificaiton of elbow dislocaitons
https://media-us.amboss.com/media/thumbs/big_61d5b2573d5e3.jpg
32
suspected elbow dislocations- required imaging
Anteroposterior and lateral X rays
33
Posterior hip dislocations present with
shortened and internally rotated leg
34
anterior hip dislocaiton presentation
The affected leg is usually abducted and externally rotated. No leg shortening.
35
complications of hip dislocation
Sciatic or femoral nerve injury Avascular necrosis Osteoarthritis: more common in older patients. Recurrent dislocation: due to damage of supporting ligaments
36
Anterorposterior x ray view: humeral head in subcoraocid position
Anterior shoudler dislocation
37
'Popeye' deformity in the middle of the upper arm
biceps rupture
38
risk factors for biceps rupture
Heavy overhead activities Shoulder overuse or underlying shoulder injuries which may stress the biceps tendon Smoking Corticosteroids; these weaken tendons
39
biceps rupture mechanism of injury
Proximal biceps long tendon ruptures: typically occurs when the biceps are lengthened and contracted and a load is applied. e.g. the descent phase of a pull-up. Distal biceps tendon ruptures: Usually when a flexed elbow is suddenly and forcefully extended whilst the biceps muscle is contracted. already
40
https://d32xxyeh8kfs8k.cloudfront.net/images_Passmedicine/xrb222b.jpg
anterior shoulder dislocation
41
common nerve injured in posterior hip dislocaiton
sciatic nerve injury
42
Mng ant shoulder dislocation
1. Closed reduction under sedation If unsuccessful or concomitant fracture or persistent neurovascular cx, then ortho referral 2. Shoulder immobiliser after reduction for 2-3 weeks 3. Physical therapy
43
Which ligament is injured anterior's shoulder dislocation.
Anterior glenohumeral ligament